Danfoss VLT AQUA Drive FC 202

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Operation
status
Description
DC brake is activated in parameter 2-03 DC Brake Cut In Speed [RPM] and a stop command is active.
DC brake (inverse) is selected as a function for a digital input (parameter group 5–1* Digital Inputs). The corre-
sponding terminal is not active.
The DC brake is activated via serial communication.
Feedback
high
The sum of all active feedback is above the feedback limit set in parameter 4-57 Warning Feedback High.
Feedback
low
The sum of all active feedback is below the feedback limit set in parameter 4-56 Warning Feedback Low.
Freeze out-
put
The remote reference is active, which holds the present speed.
[20] Freeze Output was selected as a function for a digital input (parameter group 5–1* Digital Inputs). The corre-
sponding terminal is active. Speed control is only possible via the terminal functions speed up and speed
down.
Hold ramp is activated via serial communication.
Freeze out-
put request
A freeze output command has been given, but the motor remains stopped until a run permissive signal is re-
ceived.
Freeze ref.
[19] Freeze Reference was selected as a function for a digital input (parameter group 5–1* Digital Inputs). The corre-
sponding terminal is active. The drive saves the actual reference. Changing the reference is now only possible via
terminal functions speed up and speed down.
Jog request
A jog command has been given, but the motor is stopped until a run permissive signal is received via a digital
input.
Jogging
The motor is running as programmed in parameter 3-19 Jog Speed [RPM].
[14] Jog was selected as function for a digital input (parameter group 5–1* Digital Inputs). The corresponding
terminal (for example, terminal 29) is active.
The jog function is activated via the serial communication.
The jog function was selected as a reaction for a monitoring function (for example, No signal). The monitoring
function is active.
Motor check
In parameter 1-80 Function at Stop, [2] Motor Check was selected. A stop command is active. To ensure that a motor
is connected to the drive, a permanent test current is applied to the motor.
OVC control
Overvoltage control was activated by [2] Enabled in parameter 2-17 Over-voltage Control. The connected motor is
supplying the drive with generative energy. The overvoltage control adjusts the V/Hz ratio to run the motor in
controlled mode and to prevent the drive from tripping.
Power unit
o
(For drives with a 24 V external supply installed only.) Mains supply to the drive is removed, but the control card is
supplied by the external 24 V.
Protection
md
Protection mode is active. The unit has detected a critical status (an overcurrent or overvoltage).
To avoid tripping, the switching frequency is reduced to 1.5 kHz if parameter 14-55 Output Filter is set to [2]
Sine-Wave Filter Fixed. Otherwise, the switching frequency is reduced to 1.0 kHz.
If possible, protection mode ends after approximately 10 s.
Protection mode can be restricted in parameter 14-26 Trip Delay at Inverter Fault.
Qstop
The motor is decelerating using parameter 3-81 Quick Stop Ramp Time.
[4] Quick stop inverse was selected as a function for a digital input (parameter group 5–1* Digital Inputs). The
corresponding terminal is not active.
The quick stop function was activated via serial communication.
AQ262141056213en-000201 / 130R0882 | 121Danfoss A/S © 2020.09
Maintenance, Diagnostics, and
Troubleshooting
VLT® AQUA Drive FC 202
Operating Guide